Switch cabinet with an assembly unit

Abstract

A switch cabinet having a rack with vertical frame pieces, wherein the vertical frame pieces are coupled to a lower unit or to an upper unit. Electronic components can be assembled by connecting two adjacent vertical frame pieces to a separate assembly unit with connecting elements and by fixing the components to be assembled.

What is claimed is:  
     
       1. In a switch cabinet having a rack with vertical frame pieces connected to one of a lower unit and an upper unit, the improvement comprising: two adjacent vertical frame pieces ( 30 ) combined by joining pieces ( 40 ) to form a separate mounting unit on which a plurality of built-in elements can be secured, the joining pieces ( 40 ) formed as mounting rails having a mounting surface ( 41 ) facing an interior of the rack, at least one side panel ( 42 ,  43 ) connected to the mounting surface ( 41 ) at an angle and the mounting surface ( 41 ) and the at least one side panel ( 42 ,  43 ) having a plurality of rows of attachment mountings ( 44   a,    44   b ), each of the vertical frame pieces ( 30 ) having a dovetail groove ( 35 ), a plurality of corner connectors ( 14 ) connected to the lower unit, and each of the corner connectors ( 14 ) having a flank ( 19 ) projecting into the dovetail groove ( 35 ). 
     
     
       2. In the switch cabinet in accordance with claim  1 , wherein at least one of the lower unit and the upper unit ( 10 ) has a plurality of receiving elements ( 20 ) open toward an outside of the rack and onto which an unit formed from vertical frame pieces ( 30 ) and joining pieces ( 40 ) is placed. 
     
     
       3. In the switch cabinet in accordance with claim  2 , wherein the receiving elements ( 20 ) are arranged in a corner area of at least one of the lower unit and the upper unit ( 10 ) and accommodate ends of the vertical frame pieces ( 30 ), the receiving elements ( 20 ) have a plurality of stops ( 22 ,  23 ) which limit an insertion movement of the vertical frame pieces ( 30 ) and the insertion movement is controlled at guide elements ( 17 ,  18 ) of at least one of the lower unit, the upper unit ( 10 ) and the vertical frame pieces ( 30 ). 
     
     
       4. In the switch cabinet in accordance with claim  1 , wherein at least one of the lower unit and the upper unit ( 10 ) has a plurality of receiving elements ( 20 ) open toward an outside of the rack and onto which an unit formed from vertical frame pieces ( 30 ) and joining pieces ( 40 ) is placed. 
     
     
       5. In a switch cabinet in accordance with claim  4 , wherein the at least one of the lower unit and the upper unit ( 10 ) forms a projection ( 24 ) which at least partially covers a front face ( 36 ) of the vertical frame pieces ( 30 ). 
     
     
       6. In the switch cabinet in accordance with claim  4 , wherein the receiving elements ( 20 ) are arranged in a corner area of at least one of the lower unit and the upper unit ( 10 ) and accommodate ends of the vertical frame pieces ( 30 ), the receiving elements ( 20 ) have a plurality of stops ( 22 ,  23 ) which limit an insertion movement of the vertical frame pieces ( 30 ) and the insertion movement is controlled at guide elements ( 17 ,  18 ) of at least one of the lower unit, the upper unit ( 10 ) and the vertical frame pieces ( 30 ). 
     
     
       7. In a switch cabinet in accordance with claim  6 , wherein the at least one of the lower unit and the upper unit ( 10 ) forms a projection ( 24 ) which at least partially covers a front face ( 36 ) of the vertical frame pieces ( 30 ). 
     
     
       8. In a switch cabinet in accordance with claim  7  wherein the vertical frame pieces ( 30 ) have a longitudinally extending groove facing the interior of the rack, corner connector ( 14 ) is accommodated in the groove and the vertical frame pieces ( 30 ) can be connected with the corner connectors ( 14 ). 
     
     
       9. In a switch cabinet in accordance with claim  8 , wherein the at least one of the lower unit and the upper unit ( 10 ) is connected by screw connections to the vertical frame pieces ( 30 ). 
     
     
       10. In a switch cabinet in accordance with claim  9 , wherein the vertical frame pieces ( 30 ) have profiled sides ( 32 — 32  and  34 — 34 ) arranged in pairs with respect to each other with which at least two extending mounting planes are formed which are parallel to one another. 
     
     
       11. In a switch cabinet in accordance with claim  1 , wherein the at least one of the lower unit and the upper unit ( 10 ) is connected by screw connections to the vertical frame pieces ( 30 ). 
     
     
       12. In a switch cabinet in accordance with claim  1 , wherein the vertical frame pieces ( 30 ) have profiled sides ( 32 — 32  and  34 — 34 ) arranged in pairs with respect to each other with which at least two extending mounting planes are formed which are parallel to one another. 
     
     
       13. In a switch cabinet having a rack with vertical frame pieces connected to one of a lower unit and an upper unit, the improvement comprising, two adjacent vertical frame pieces ( 30 ) combined by joining pieces ( 40 ) to form a separate mounting unit on which a plurality of built-in elements can be secured, the vertical frame pieces ( 30 ) each having a longitudinally extending groove facing an interior of the rack, a corner connector ( 14 ) accommodated in the groove and one of the vertical frame pieces ( 30 ) connected with the corner connector ( 14 ) with a flank ( 19 ) of the corner connector ( 14 ) projecting into a dovetail groove ( 35 ) of the one of the vertical frame pieces ( 30 ). 
     
     
       14. In a switch cabinet in accordance with claim  13  wherein the corner connector ( 14 ) is in a form of a cuboid element.